Kèo nhà cái 5ǼжĸûͶвֻһСÿ°˾ŰٵҩǮһ굽ͷûʣĸ˵Ϊͥûжбѧڼũ20ʱȥɳͬҿָصνթƭǡɱһļǮҪҪ֪ߡ˵Щһթ衱˵ǷΪʵȷʵܶԡǷռСĿļڳƿߴ˾ŲõżΪҲΪʲôС¼粨ԭ˼ֱӷӳѶƿԼĽô˵־ԸȨලƿȥȻƿʹҲн͵ȨDzԩҪͨɵԭʵ
йפϹйפĶ⽻йϹ滮ճЭ1976ڿޱɳפȹԱפͼ֪ͨίפͼ鳤ܸĸ漰Ĺξ˽ɲ˼״뵳Աһ̸ȷҪȷ뾫䵽ʵȷĸ˳ʵʩȷ˼ȶ⽻˻Өڽ죨2գмϽǿճϯߴպ쵼˻鲢ձ
ν̸Ӧ˫Эĥһյȫ5ѮΪвͺϲʱοܳȾ3~4ƫͽˮӰʪΪвͺϾֵȾ5~7غʡܽǿƫӰɢܽӰʪͺϾֵȾ8~10СģˮӰɢʪΪ11~16ɢһΪвϴ㶫ȾڼҪȾҪΪPM2.5PM10ø˳ΪгȻϹӦԴĿ߸ѹվֹʸ·ȫԼΪ45ʱʵֱӴʯ·ĿǰӾͨʡڳ߹·ܹ2020ĩԴ깩ﵽ46LNGӦվѿƻ½1̨2.5ˮݻڽȫLNGޣ1500ף201810µǰͶӳȻӦ
ǰһ˸пİŮԡզ?